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TES: The largest network of teachers in the world
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Table of Contents
Broad Question
What effects how long does oobleck stay solid?Specific Question
How does dropping a brick from different heights effect how long oobleck stays solid?Hypothesis
If you drop a brick from 60 centimeters it will float on oobleck longer than if you droped it at 0 cm.Graph of Hypothesis
Variables
Independent Variable: Dropping height if brick.
Dependent Variable: How long oobleck stays solid.
Variables That Need To Be Controlled: Dropping from correct height
Vocabulary List That Needs Explanation
Oobleck: Oobleck is a non-Newtonian fluid that with enough pressure applied it turns into a solid.Viscosity: Is the measurement of how much resistance a fluid has.
"World Book Online Reference Center | Online Reference Book| Online Encyclopedia."World Book. N.p., n.d. Web. 25 Feb. 2013.
General Plan
Potential Problems And Solutions
Dropping mechanism not working. I would fix the mechanism asap.Safety Or Environmental Concerns
Dropping brick on foot. Be extra careful
Experimental Design
Resources and Budget Table
Detailed Procedure
Diagram
Photo List
Time Line
Data Table
Data Analysis
All Raw Data
Graphs
Photos
Results
Conclusion
The data that I collected did not support my hypothesis. My data shows that no matter what height you drop a brick from it wont make a difference. We can see this because the average drop time for 0 cm was 1 second and the time for 60 cm was 1.3 seconds the difference was .3 seconds. The mean of the data was 1.2 seconds it appeared 3 times for the heights; 30, 40, and 50 cm. 10 cm had an average of 1.3 seconds which is the same average time as 60 cm. The average time for the all was 1.2 seconds.Discussion
My project could have been better in different ways. My data could be inaccurate in small amounts. The mixture could have changed throughout the project it could have changed because I would get my hands wet so I could get the brick out of the oobleck easier so the water on my hands cold have affected the viscosity of the oobleck. The way I was dropping the brick could have affected the data, it could have affected it because the height of the drop might have been off. How the brick landed could have affected the data. If the brick hit flat it would be a flat surface hitting the oobleck rather than a point hitting it. The way I collected the data may have been off. I used a stop watch to time how long it took for the brick to become completely submerged. I started the timer when the brick hit the top of the oobleck and stopped it when the top of the brick was covered.Benefit to Community and/or Science
Background Research
Oobleck got its name because in the story Bartholomew and the Oobleck the story is about a boy named Bartholomew has to save his kingdom from a sticky substance called oobleck, the way Dr. Seuss described it fit the way oobleck behaves. A non-Newtonian fluid is a fluid that does not have the same viscosity as a regular fluid you can't use math to predict the rate of flow. A Newtonian fluid is a fluid that you can use math to predict the rate of flow.References
http://en.wikipedia.org/wiki/Newtonian_fluidhttp://en.wikipedia.org/wiki/Non-Newtonian_fluid
http://en.wikipedia.org/wiki/Bartholomew_and_the_Oobleck
Abstract
I came upon this project a short while after we played with oobleck in our class. I was thinking, what affects the solidity of oobleck? I thought if some different things the first thing was this project. If an object is dropped at different heights does it affect how long oobleck stays solid. When I brought this idea to my teacher he said "That's a good idea but it could be improved on." I thought about how I could make it better so I thought I could drop a brick into a tub of oobleck and time how long it takes to sink into the oobleck.